Linear Graphs
Chapter Name : Introduction To Graphs |
Sub Topic Code : 104_08_15_02_01 |
Topic Name : Linear Graphs |
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Sub Topic Name : Location Of A Point |
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Introduction
What is a linear graph?
Pre-Requisites:
Basic knowledge about proportions and graphs
Activity:
For every interval a certain number of various coloured bands will be used. Each band is represented with a different line.
Real Life Question:
How is the temperature of an oven shown against time?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Graph Linear graph | A graph is an abstract representation of a set of objects where some pairs of the objects are connected by links A linear graph consists of a straight line segment. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Rubber bands of different colours | Scale each rubber band according to its colour in feet. Ask the student to form the front view of a 100x40 foot building using different bands. Form intervals of 10 feet in both directions and represent each band with a different line on the graph and plot the number of them used in each interval. |
Real life uses :
Representation of sales, surveys, numbers, comparing data with a quantity
Practical examples around us
| Examples | Explainations |
|---|---|
| Sales Surveys | The sales of various products of a company are shown using linear graphs by dividing the year into production intervals Surveys use linear graphs to represent the data found with each value given in each interval. |
What you learn in Theory:
A linear graph is a line graph with straight line segments. The points are in an orderly manner. It usually shows a visual comparison between two quantities using a single line segments. The line is joined end to end. It is used to display data that changes over one factor like time or interval.
What you learn in Practice:
Using various scaled bands of different colours, the structure can be formed uniquely in different ways using different number of different bands. The dimensions of structure are divided into several equal intervals. Each band is represented by a line. The number of bands of a particular colour used in a particular interval is represented on the graph using points and the points are joined end to end.